zoras

ssh <computer_name or ip> echo $PATH /usr/bin:/bin:/usr/sbin:/sbin

This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin

Edit the /etc/sshd_config file by activating the PermitUserEnvironment yes option and then creating a ~/.ssh/environment file with the following:-

PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/git/bin

zoras

➜ (ruby-1.8.7-head) Employee  rails s
/Users/zoras/.rvm/rubies/ruby-1.8.7-head/lib/ruby/1.8/logger.rb:174: private method `chomp' called for nil:NilClass (NoMethodError)
	from /Users/zoras/.rvm/gems/ruby-1.8.7-head/gems/activesupport-3.0.0/lib/active_support/core_ext/logger.rb:19:in `require'
	from /Users/zoras/.rvm/gems/ruby-1.8.7-head/gems/activesupport-3.0.0/lib/active_support/core_ext/logger.rb:19
	from /Users/zoras/.rvm/gems/ruby-1.8.7-head/gems/railties-3.0.0/lib/rails.rb:7:in `require'
	from /Users/zoras/.rvm/gems/ruby-1.8.7-head/gems/railties-3.0.0/lib/rails.rb:7
	from /Users/zoras/.rvm/gems/ruby-1.8.7-head/gems/railties-3.0.0/lib/rails/all.rb:1:in `require'
	from /Users/zoras/.rvm/gems/ruby-1.8.7-head/gems/railties-3.0.0/lib/rails/all.rb:1
	from /Users/zoras/Dev/Training/Employee/config/application.rb:3:in `require'
	from /Users/zoras/Dev/Training/Employee/config/application.rb:3

zoras

# install all the packages required for using ruby on rails in cygwin
# http://software.jessies.org/salma-hayek/cygwin-setup.html
# Cygwin is a Linux-like environment for MS Windows. You can read more about it on the Cygwin home page, but this page assumes you know what it is and have already decided that you want it. If you're a Unix user and you're stuck with a Win32 box, you probably do. It's quite a remarkable hack.

Download the Cygwin setup.exe from http://www.cygwin.com/setup.exe

# Packages
inetutils  # telnet(1)
ncurses    # see Terminator FAQ
openssh    # SSH (client and server, though the server's not so great)

zoras

sudo apt-get install libdjvulibre-dev libjpeg-dev libtiff-dev libwmf-dev libmagickcore-dev libmagickwand-dev libmagick++-dev rvm

sudo gem install rmagick

ok!

Fetching: rmagick-2.13.1.gem (100%) Building native extensions. This could take a while ... Successfully installed rmagick-2.13.1 1 gem installed

 require 'RMagick' #=> true 

zoras

# If your workers are inactive for a long period of time, they'll lose
# their MySQL connection.
#
# This hack ensures we re-connect whenever a connection is
# lost. Because, really. why not?
#
# Stick this in RAILS_ROOT/config/initializers/connection_fix.rb (or somewhere similar)
#
# From:
#   http://coderrr.wordpress.com/2009/01/08/activerecord-threading-issues-and-resolutions/

zoras

# add this to your spec helper
RSpec.configure do |config|
  config.treat_symbols_as_metadata_keys_with_true_values = true
  config.filter_run :focus => true
  config.run_all_when_everything_filtered = true
end

# and then use the :focus tag in your specs

it "does something awesome", :focus do

zoras

require "uri"

(URI::REGEXP.constants - ["PATTERN"]).each do |rc|
  puts "#{rc}: #{URI::REGEXP.const_get(rc)}"
end

URI::REGEXP::PATTERN.constants.each do |pc|
  puts "#{pc}: #{URI::REGEXP::PATTERN.const_get(pc)}"
end

zoras

require 'mail'

class EmailValidator < ActiveModel::EachValidator
  attr_reader :record, :attribute, :value, :email, :tree

  def validate_each(record, attribute, value)
    @record, @attribute, @value = record, attribute, value

    @email = Mail::Address.new(value)
    @tree  = email.__send__(:tree)

zoras

Difference between C++ and Ruby private/protected

One person summed up the distinctions by saying that in C++, “private” means “private to this class”, while in Ruby it means “private to this instance”. What this means, in C++ from code in class A, you can access any private method for any other object of type A. In Ruby, you can not: you can only access private methods for your instance of object, and not for any other object instance (of class A).

Ruby folks keep saying "private means you cannot specify the receiver". What they are saying, if method is private, in your code you can say:

  class AccessPrivate
    def a
    end
    private :a # a is private method

zoras

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 Mathieu 'p01' Henri <http://www.p01.org/releases/>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE